Matt Damon has a hard time describing what it's like to be a daddy. "It defies description, actually. I don't really know how to talk about it because I don't really know – I feel like I got made a member of a club that I didn't know existed," he said. The star has two daughters with his Argentinian wife Luciana Bozan Barroso – Isabella, three, and one-year-old Gia.

Awards and box office glory fade to nothing when compared to the experience of becoming a daddy. At least according to a large group of celebrity fathers. As Father's Day approaches on June 20 we take a look at what the stars have to say about being a dad.

As he already has seven children, you might have expected Mel Gibson to have lost some of his enthusiasm for being a daddy by the time his eighth child, baby Lucia, was born in October. But not so. "Being a father again is fantastic," he told HELLO!. "There’s no gift like the gift of a young life, and she’s so sweet. But the beauty of having done it both young and old is that you can look back and remember the old experiences while you’re having the new one." The little girl is the result of a relationship with Russian pianist Oksana Grigorieva.

When he looks at his family, Boris Becker – who welcomed baby Amadeus with new wife Lilly Kerssenberg in February – feels compelled to count his blessings. "Every man wants at least one boy, so I have been blessed three times. Also, I don’t want to miss out my daughter – I am a proud father of four," said the sportsman. He has two sons, Noah, 16, and Elias, ten, by his first wife, as well as a nine-year-old daughter, Anna, who was born after an encounter with Russian-born model Angela Ermakova. He adds: "If someone had told me 20 years ago that by the age of 42 I would have four children, I wouldn't have believed them."

"In my personal life, I have no interests beyond being happy with my wife and children," Spanish crooner and dad of eight Julio Iglesias told HELLO. "I'm passionate about the enormous joy that comes with having created this family, which has joined with my other family, my adult children, Chabeli, Julio and Enrique. I have a lot of reasons to be happy." In addition to the three children he had with his first wife Isabel Preysler, Julio is also father to sons Miguel, Rodrigo and Guillermo and twin daughters Victoria and Cristina, whom he has with Dutch model Miranda Rijnsburger.

When HELLO! asked what kind of father Antonio Banderas is to his 13-year-old daughter Stella, he said: "I'm not strict and I like to talk things through. Still, I have a kind of guilt complex that has to do with the time I spend away from home. I don't like to be away. It makes me nervous and sometimes I get worried, above all during the difficult ages. I've never forced her to do anything: she has to become her own person. Of course we talk and she reads masses. She's a fantastic student."

Fatherhood is, according to dad-of-six Brad Pitt: "What I've wanted for a long time." He adds, "Being a father in a big loving family like I have is the high point of my life. It's a very comforting feeling. There's nothing better than being a father. It can be tiring sometimes, but I'm lucky that Angie is so incredibly organised and has so much energy. She's amazing." The actor has three biological children with partner Angelina Jolie – Shiloh and twins Knox and Vivienne – and three adopted children: Maddox, Pax and Zahara.

Being a daddy completely takes over your whole life, says Hugh Jackman – father to Oscar and Ava. "Everything is related to the kids now. It's frightening how in love you are with them. You have those little flashes of them jumping into a road and you stop breathing," he said. "Everything is exposed with kids. There's no artifice, because they see you for exactly what you are. You can't pretend. Actors fool people about the kind of person they are. You wear whatever mask you want to put on. But it doesn't work with kids."

Matthew Broderick loves being a parent to son James Wilke and twins Marion and Tabitha. But just don't ask him for any tips. "I like being a father, but I don't have any advice about it," explains the actor, who is married to Sarah Jessica Parker. "I guess I could say the same thing about my marriage, basically. It just develops and changes and I'm very lucky with who I finished up with."